What you can't grasp is that de novo in the law as written doesn't mean try the whole thing from the beginning. The law did not state that the judge "shall conduct a trial de novo." It said to have an independent appellate determination without regard to previous state appellate court findings (de novo) of "...any claim of a violation of any right of Theresa Marie Schiavo..." Such claims were made to the court. The court determined those claims, and then denied those claims as being without merit.
Whittemore did his job. No amount of complaining will change that.
So, do you think that Terri being murdered is a good thing?
This was not to appeal state determinations. This was for a suit or claim, de novo, in FEDERAL courts. Not a revisit to procedures taken in state courts.